1
0
mirror of https://github.com/BookStackApp/BookStack.git synced 2025-07-19 22:03:19 +03:00
Files
bookstack/resources/js/components/tri-layout.ts
2025-06-30 15:36:27 +01:00

141 lines
4.2 KiB
TypeScript

import {Component} from './component';
export class TriLayout extends Component {
private container!: HTMLElement;
private tabs!: HTMLElement[];
private sidebarScrollContainers!: HTMLElement[];
private lastLayoutType = 'none';
private onDestroy: (()=>void)|null = null;
private scrollCache: Record<string, number> = {
content: 0,
info: 0,
};
private lastTabShown = 'content';
setup(): void {
this.container = this.$refs.container;
this.tabs = this.$manyRefs.tab;
this.sidebarScrollContainers = this.$manyRefs.sidebarScrollContainer;
// Bind any listeners
this.mobileTabClick = this.mobileTabClick.bind(this);
// Watch layout changes
this.updateLayout();
window.addEventListener('resize', () => {
this.updateLayout();
}, {passive: true});
this.setupSidebarScrollHandlers();
}
updateLayout(): void {
let newLayout = 'tablet';
if (window.innerWidth <= 1000) newLayout = 'mobile';
if (window.innerWidth > 1400) newLayout = 'desktop';
if (newLayout === this.lastLayoutType) return;
if (this.onDestroy) {
this.onDestroy();
this.onDestroy = null;
}
if (newLayout === 'desktop') {
this.setupDesktop();
} else if (newLayout === 'mobile') {
this.setupMobile();
}
this.lastLayoutType = newLayout;
}
setupMobile() {
for (const tab of this.tabs) {
tab.addEventListener('click', this.mobileTabClick);
}
this.onDestroy = () => {
for (const tab of this.tabs) {
tab.removeEventListener('click', this.mobileTabClick);
}
};
}
setupDesktop(): void {
//
}
/**
* Action to run when the mobile info toggle bar is clicked/tapped
*/
mobileTabClick(event: MouseEvent): void {
const tab = (event.target as HTMLElement).dataset.tab || '';
this.showTab(tab);
}
/**
* Show the content tab.
* Used by the page-display component.
*/
showContent(): void {
this.showTab('content', false);
}
/**
* Show the given tab
*/
showTab(tabName: string, scroll: boolean = true): void {
this.scrollCache[this.lastTabShown] = document.documentElement.scrollTop;
// Set tab status
for (const tab of this.tabs) {
const isActive = (tab.dataset.tab === tabName);
tab.setAttribute('aria-selected', isActive ? 'true' : 'false');
}
// Toggle section
const showInfo = (tabName === 'info');
this.container.classList.toggle('show-info', showInfo);
// Set the scroll position from cache
if (scroll) {
const pageHeader = document.querySelector('header') as HTMLElement;
const defaultScrollTop = pageHeader.getBoundingClientRect().bottom;
document.documentElement.scrollTop = this.scrollCache[tabName] || defaultScrollTop;
setTimeout(() => {
document.documentElement.scrollTop = this.scrollCache[tabName] || defaultScrollTop;
}, 50);
}
this.lastTabShown = tabName;
}
setupSidebarScrollHandlers(): void {
for (const sidebar of this.sidebarScrollContainers) {
sidebar.addEventListener('scroll', () => this.handleSidebarScroll(sidebar), {
passive: true,
});
this.handleSidebarScroll(sidebar);
}
window.addEventListener('resize', () => {
for (const sidebar of this.sidebarScrollContainers) {
this.handleSidebarScroll(sidebar);
}
});
}
handleSidebarScroll(sidebar: HTMLElement): void {
const scrollable = sidebar.clientHeight !== sidebar.scrollHeight;
const atTop = sidebar.scrollTop === 0;
const atBottom = (sidebar.scrollTop + sidebar.clientHeight) === sidebar.scrollHeight;
if (sidebar.parentElement) {
sidebar.parentElement.classList.toggle('scroll-away-from-top', !atTop && scrollable);
sidebar.parentElement.classList.toggle('scroll-away-from-bottom', !atBottom && scrollable);
}
}
}